摘要
The interface structures and fracture behavior of the two-dimensional carbon/carbon composites by isothermal vapor infiltration have been investigated. The results show that the graphene layers exhibit long-range order in high/textured pyrocarbon matrix and are curved in about 5-nm interface region of the fiber/high-textured. Some globular nanoparticles are formed on the fiber surface and the high-textured layer about 10 nm exists in the interface of the fiber/low-textured. The graphene layers stacks are scrolled and folded in the medium-textured and they are waved together in the interface of the fiber/medium-textured. The pseudo-plastic fracture behavior of the two-dimensional carbon/carbon composites is resulted from the dominant high-textured matrix and a moderate interfacial bonding force. A strong adhesion of the fiber/low-textured and the thicker fiber increased by surrounding low-textured layer result in the increasing flexural strength. The single medium-textured and a very strong bonding force of the fiber/medium-textured lead to the brittle fracture behavior.
源语言 | 英语 |
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页(从-至) | 1432-1437 |
页数 | 6 |
期刊 | Journal of Materials Science |
卷 | 45 |
期 | 6 |
DOI | |
出版状态 | 已出版 - 3月 2010 |